1
|
The prognostic implications of comorbidity and risk factors for (post)operative complications, days spent in the intensive care unit (ICU), and length of hospitalization in patients with oral squamous cell carcinoma: A prospective study. J Craniomaxillofac Surg 2020; 48:868-874. [PMID: 32753120 DOI: 10.1016/j.jcms.2020.07.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2019] [Revised: 06/30/2020] [Accepted: 07/12/2020] [Indexed: 01/20/2023] Open
Abstract
BACKGROUND This study aimed to investigate the prognostic implications of comorbidity/risk factors in a cohort of patients with OSCC. METHODS The prospective study included patients with biopsy-proven primary OSCC. The impact of potential predictors on (post)operative complications, days spent in the ICU, and length of hospitalization was analyzed using both univariate and multivariate analysis. RESULTS Using a microvascular free flap (p = 0.009) and tobacco abuse (p = 0.005) had statistically significant impacts on postoperative complications in univariate, but not in multivariate, analysis. The duration of anesthesia (p < 0.001), type of neck dissection (p = 0.014), reconstruction type (p < 0.001), and red blood cell transfusion during operation (p = 0.007) had statistically significant impacts on spending ≥ 3 days in ICU in univariate analysis, with reconstruction type (p = 0.022) and red blood cell transfusion during operation (p = 0.034) having similar impacts in multivariate analysis. The duration of anesthesia (p < 0.001), pT (p = 0.009), type of neck dissection (p = 0.046), reconstruction type (p < 0.001), and microvascular free flap (p < 0.001) had a statistically significant impacts on length of hospitalization in univariate analysis, with reconstruction type (p < 0.001) also having a significant impact in multivariate analysis. CONCLUSION None of the investigated variables showed a significant effect on the prediction of (post)operative complications according to the Clavien-Dindo classification. The type of reconstruction proved to be a valid predictor for the time spent in ICU as well as for the overall length of hospitalization. Red blood cell transfusion during operation further predicted the time spent in ICU after operation. Both variables should be taken into account when performing a comprehensive planning of the patients' hospitalization.
Collapse
|
2
|
Shen J, Sun C, Zhou M, Zhang Z. Combination treatment with cetuximab in advanced nasopharyngeal carcinoma patients: a meta-analysis. Onco Targets Ther 2019; 12:2477-2494. [PMID: 31040691 PMCID: PMC6452812 DOI: 10.2147/ott.s193039] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Purpose Cetuximab, an anti-epidermal growth factor receptor monoclonal antibody, carries the potential for combination treatment against nasopharyngeal carcinoma (NPC). We conducted a meta-analysis to assess the possible benefits and safety between the combination treatment with cetuximab and conventional treatment in NPC patients. Skin toxicity (ST) associated with additional cetuximab was evaluated as well. Methods We performed a systematic search (PubMed, Embase, Cochrane library, China National Knowledge Infrastructure, and WanFang Data) for studies comparing combination treatment with cetuximab versus conventional treatment in NPC patients. The selected studies included completely or partly reported clinical outcomes including survivals, complete and partial responses, and adverse reactions (ST). The pooled HR, relative risk (RR), and respective 95% CI were estimated by using fixed effects model or random effects model. Results A total of 23 relevant studies with available data were included in the final analysis. According to the pooled data, combination treatment with cetuximab showed improved efficacy on increased objective response rate (studies with cetuximab treatment: RR: 1.39, 95% CI: 1.29–1.50; concurrent chemoradiotherapy with or without cetuximab: RR: 1.39, 95% CI: 1.25–1.54) and prolonged survival (studies with cetuximab treatment: the pooled HR for OS was 0.70, 95% CI: 0.55–0.89; concurrent chemoradiotherapy with or without cetuximab: the pooled HR for OS was 0.64, 95% CI: 0.49–0.84) compared with conventional treatment. Moreover, the improved efficacy was invariably accompanied by an increased occurrence of ST (studies with cetuximab treatment: RR: 2.46, 95% CI: 1.81–3.34; concurrent chemoradiotherapy with or without cetuximab: RR: 1.84, 95% CI: 1.02–3.31). However, the majority of adverse reactions exhibited similar occurrence rates between the different treatments. Conclusion Patients with NPC receiving additional cetuximab treatment can benefit more from this systemic comprehensive therapy, while the efficiency of conventional treatment for NPC is limited. ST associated with cetuximab may be used as a potential on-treatment marker to guide treatment with cetuximab against NPC.
Collapse
Affiliation(s)
- Jia Shen
- Department of Otolaryngology Head and Neck Surgery, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, People's Republic of China,
| | - Changling Sun
- Department of Otolaryngology Head and Neck Surgery, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, People's Republic of China,
| | - Min Zhou
- Department of Traditional Chinese Medicine, Nanjing Medical University Affiliated Cancer Hospital, Nanjing, Jiangsu, People's Republic of China
| | - Zhen Zhang
- Department of Otolaryngology Head and Neck Surgery, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, People's Republic of China, .,Department of Integrated Traditional Chinese Medicine & Western Medicine Oncology, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, People's Republic of China,
| |
Collapse
|
3
|
Urlaub KM, Lynn JV, Carey EG, Nelson NS, Polyatskaya Y, Donneys A, Mazzoli AC, Buchman SR. Histologic Improvements in Irradiated Bone Through Pharmaceutical Intervention in Mandibular Distraction Osteogenesis. J Oral Maxillofac Surg 2018; 76:2660-2668. [DOI: 10.1016/j.joms.2018.05.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Revised: 05/08/2018] [Accepted: 05/08/2018] [Indexed: 01/22/2023]
|
4
|
Arnesano F, Nardella MI, Natile G. Platinum drugs, copper transporters and copper chelators. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2018.07.003] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
|
5
|
Rempel V, Safi A, Drebber U, Nickenig H, Neugebauer J, Zöller J, Kreppel M. The prognostic relevance of lymph node ratio in patients with oral squamous cell carcinoma treated with neoadjuvant therapy regimen and radical surgery. J Craniomaxillofac Surg 2018; 46:1659-1663. [DOI: 10.1016/j.jcms.2018.05.053] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Revised: 05/03/2018] [Accepted: 05/31/2018] [Indexed: 10/14/2022] Open
|
6
|
Rocha FS, Limirio PHJO, Zanetta-Barbosa D, Batista JD, Dechichi P. The effects of ionizing radiation on the growth plate in rat tibiae. Microsc Res Tech 2016; 79:1147-1151. [PMID: 27589341 DOI: 10.1002/jemt.22769] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Revised: 08/07/2016] [Accepted: 08/16/2016] [Indexed: 11/06/2022]
Abstract
The deleterious effects of ionizing radiation on the growth plate continue to be cause for concern. This study evaluated the ionizing radiation effects on bone development and growth plate in the tibia of rats. All animals were submitted to ionizing radiation on the left leg. The animals were divided into two groups and euthanized 30 and 60 days after radiation. The tibiae were removed and separated into groups: control 30 days, irradiated 30 days, control 60 days and irradiated 60 days. Animals in each group (n = 7) were used for macroscopic and histological analysis. The irradiated tibiae showed arrested growth, angular deformity and limb length discrepancy when compared with nonirradiated tibiae. There was statistical difference between control and radiation groups in all the parameters analyzed, except in the lateral-medial thickness of the distal epiphysis. Histological analysis showed evident changes in the growth plate, which was thicker in the Groups irradiated for 30 days, and irradiated for 60 days, compared with their respective controls. The growth plate showed wide areas with disorganized zones of chondrocytes and severely reduced calcification zone. It was concluded that ionizing radiation damaged the growth plate, compromised the endochondral ossification process, and resulted in complete arrest of bone development.
Collapse
Affiliation(s)
- Flaviana Soares Rocha
- School of Dentistry, Oral and Maxillofacial Surgery and Implantology Department, University of Uberlândia, Avenida Pará s/nº, Campus Umuarama, Bloco 4T, Departamento de Cirurgia e Traumatologia Buco-Maxilo-Facial, Bairro Umuarama, Uberlândia, Minas Gerais, 38.400-902, Brazil
| | - Pedro Henrique Justino Oliveira Limirio
- Integrated Dental Clinic Program, School of Dentistry, University of Uberlândia, Avenida Pará s/nº, Campus Umuarama, Bloco 4T, Departamento de Cirurgia e Traumatologia Buco-Maxilo-Facial, Bairro Umuarama, Uberlândia, Minas Gerais, 38.400-902, Brazil
| | - Darceny Zanetta-Barbosa
- School of Dentistry, Oral and Maxillofacial Surgery and Implantology Department, University of Uberlândia, Avenida Pará s/nº, Campus Umuarama, Bloco 4T, Departamento de Cirurgia e Traumatologia Buco-Maxilo-Facial, Bairro Umuarama, Uberlândia, Minas Gerais, 38.400-902, Brazil
| | - Jonas Dantas Batista
- School of Dentistry, Oral and Maxillofacial Surgery and Implantology Department, University of Uberlândia, Avenida Pará s/nº, Campus Umuarama, Bloco 4T, Departamento de Cirurgia e Traumatologia Buco-Maxilo-Facial, Bairro Umuarama, Uberlândia, Minas Gerais, 38.400-902, Brazil
| | - Paula Dechichi
- Biomedical Science Institute, University of Uberlândia, Avenida Pará 1720, Campus Umuarama, Bloco 2B, Departamento de Morfologia, Bairro Umuarama, Uberlândia, Minas Gerais, 38.400-902, Brazil
| |
Collapse
|
7
|
Bahramnezhad F, Dehghan Nayeri N, Bassampour SS, Khajeh M, Asgari P. Honey and Radiation-Induced Stomatitis in Patients With Head and Neck Cancer. IRANIAN RED CRESCENT MEDICAL JOURNAL 2015; 17:e19256. [PMID: 26568850 PMCID: PMC4636750 DOI: 10.5812/ircmj.19256] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/02/2014] [Revised: 12/02/2014] [Accepted: 03/20/2015] [Indexed: 11/16/2022]
Abstract
BACKGROUND Stomatitis is a common oral complication which affects 100% of patients undergoing head and neck radiotherapy. Acute stomatitis might cause failure and delay radiotherapy. Attention to mouth hygiene, particularly using mouthwash, has a fundamental importance for these patients. OBJECTIVES The current study came to addresses the effects of pure natural honey on radiation-induced stomatitis in patients with a variety of head and neck cancers. PATIENTS AND METHODS The present single-blinded nonrandomized controlled trial was conducted on 105 patients undergoing radiotherapy due to head and neck cancer at the radiation unit of Shafa hospital in Kerman, Iran, from October 2012 to March 2012. The research groups were selected by writing the names of the protocols (the mouthwashes of chamomile, honey and the common caring protocol at ward which uses water) on three cubes. The first extracted cube was related to the chamomile mouthwash (Matrica), the second to the honey mouthwash and the last cube to the water mouthwash. The first experimental group (n = 35) gurgled a solution containing 20 mL diluted honey, the second group gurgled a solution containing German chamomile, and the 35 patients in the control group were advised to gurgle 20 mL water (the ward routine). RESULTS The results showed that severe stomatitis in groups of honey, chamomile and control was 0, 5.7%, and 17.6%, respectively. On the 14th day, it was 0, 0, and 17.6%, respectively. There were significant differences between the three groups regarding the severity of stomatitis in the 14th day (P < 0.001). CONCLUSIONS The application of natural honey is effective in managing and preventing radiation-induced stomatitis in patients with head and neck cancers.
Collapse
Affiliation(s)
- Fatemeh Bahramnezhad
- Department of Critical Care Nursing, School of Nursing and Midwifery, Tehran University of Medical Sciences, Tehran, IR Iran
| | - Nahid Dehghan Nayeri
- Nursing and Midwifery Care Research Center, School of Nursing and Midwifery, Tehran University of Medical Sciences, Tehran, IR Iran
| | - Shiva Sadat Bassampour
- Department of Medical and Surgical Nursing, Faculty of Nursing and Midwifery, Tehran University of Medical Sciences, Tehran, IR Iran
| | - Mahboobeh Khajeh
- Department of Pediatric, School of Nursing and Midwifery, Tehran University of Medical Sciences, Tehran, IR Iran
| | - Parvaneh Asgari
- Department of Critical Care Nursing, Nursing and Midwifery Faculty, Arak University of Medical Sciences, Arak, IR Iran
| |
Collapse
|
8
|
Donneys A, Nelson NS, Page EE, Deshpande SS, Felice PA, Tchanque-Fossuo CN, Spiegel JP, Buchman SR. Targeting angiogenesis as a therapeutic means to reinforce osteocyte survival and prevent nonunions in the aftermath of radiotherapy. Head Neck 2014; 37:1261-7. [PMID: 24801669 DOI: 10.1002/hed.23744] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2014] [Revised: 03/19/2014] [Accepted: 05/03/2014] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Radiotherapy (XRT) exerts detrimental collateral effects on bone tissue through mechanisms of vascular damage and impediments to osteocytes, ultimately predisposing patients to the debilitating problems of late pathologic fractures and nonunions. We posit that angiogenic therapy will reverse these pathologic effects in a rat model of radiated fracture healing. METHODS Three groups of rats underwent mandibular osteotomy. Radiated groups received a fractionated 35-Gy dose before surgery. The deferoxamine (DFO) group received local injections postoperatively. A 40-day healing period was allowed before histology. Analysis of variance (ANOVA; p < .05) was used for group comparisons. RESULTS Radiated fractures revealed a significantly decreased osteocyte count and corresponding increase in empty lacunae when compared to nonradiated fractures (p = .001). With the addition of DFO, these differences were not appreciated. Further, a 42% increase in bony unions was observed after DFO therapy. CONCLUSION Targeting angiogenesis is a useful means for promoting osteocyte survival and preventing bone pathology after XRT.
Collapse
Affiliation(s)
- Alexis Donneys
- Craniofacial Research Laboratory, Plastic Surgery Section, University of Michigan, Ann Arbor, Michigan
| | - Noah S Nelson
- Craniofacial Research Laboratory, Plastic Surgery Section, University of Michigan, Ann Arbor, Michigan
| | - Erin E Page
- Craniofacial Research Laboratory, Plastic Surgery Section, University of Michigan, Ann Arbor, Michigan
| | - Sagar S Deshpande
- Craniofacial Research Laboratory, Plastic Surgery Section, University of Michigan, Ann Arbor, Michigan
| | - Peter A Felice
- Craniofacial Research Laboratory, Plastic Surgery Section, University of Michigan, Ann Arbor, Michigan.,Department of General Surgery, University of South Carolina School of Medicine, Columbia, South Carolina
| | | | - Joshua P Spiegel
- Craniofacial Research Laboratory, Plastic Surgery Section, University of Michigan, Ann Arbor, Michigan
| | - Steven R Buchman
- Craniofacial Research Laboratory, Plastic Surgery Section, University of Michigan, Ann Arbor, Michigan
| |
Collapse
|
9
|
Vainshtein JM, Wu VF, Spector ME, Bradford CR, Wolf GT, Worden FP. Chemoselection: a paradigm for optimization of organ preservation in locally advanced larynx cancer. Expert Rev Anticancer Ther 2014; 13:1053-64. [PMID: 24053204 DOI: 10.1586/14737140.2013.829646] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Definitive chemoradiation (CRT) and laryngectomy followed by postoperative radiotherapy (RT) are both considered standard-of-care options for the management of advanced laryngeal cancer. While organ preservation with chemoradiotherapy is often the preferred up-front approach for appropriately selected candidates, the functional benefits of organ preservation must be carefully balanced against the considerable morbidity of salvage laryngectomy in patients who fail primary chemoradiation. Up-front identification of patients who are likely to require surgical salvage, therefore, is an important aim of any organ preserving approach in order to minimize morbidity while maximizing organ preservation. To this end, a strategy of 'chemoselection', using the primary tumor's response after 1 cycle of induction chemotherapy as an in vivo method of selecting responders for definitive chemoradiation while reserving primary surgical management for non-responders, has been employed extensively at our institution. The rationale, treatment results and future directions of this approach are discussed.
Collapse
Affiliation(s)
- Jeffrey M Vainshtein
- Department of Radiation Oncology, University of Michigan Health System, Ann Arbor, MI, USA
| | | | | | | | | | | |
Collapse
|
10
|
Improving therapeutic ratio in head and neck cancer with adjuvant and cisplatin-based treatments. BIOMED RESEARCH INTERNATIONAL 2013; 2013:817279. [PMID: 24455727 PMCID: PMC3881661 DOI: 10.1155/2013/817279] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2013] [Revised: 09/30/2013] [Accepted: 09/30/2013] [Indexed: 11/17/2022]
Abstract
Advanced head and neck cancers are difficult to manage despite the large treatment arsenal currently available. The multidisciplinary effort to increase disease-free survival and diminish normal tissue toxicity was rewarded with better locoregional control and sometimes fewer side effects. Nevertheless, locoregional recurrence is still one of the main reasons for treatment failure. Today, the standard of care in head and neck cancer management is represented by altered fractionation radiotherapy combined with platinum-based chemotherapy. Targeted therapies as well as chronotherapy were trialled with more or less success. The aim of the current work is to review the available techniques, which could contribute towards a higher therapeutic ratio in the treatment of advanced head and neck cancer patients.
Collapse
|
11
|
Park SH, Lee JH, Lee GB, Byun HJ, Kim BR, Park CY, Kim HB, Rho SB. PDCD6 additively cooperates with anti-cancer drugs through activation of NF-κB pathways. Cell Signal 2011; 24:726-33. [PMID: 22142513 DOI: 10.1016/j.cellsig.2011.11.006] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2011] [Accepted: 11/02/2011] [Indexed: 12/14/2022]
Abstract
The expression of programmed cell death 6 (PDCD6) is known to be down-regulated in cancer cell lines and ovarian cancer tissues compared to normal cells and tissues. In the current study, we characterized the specific function of PDCD6 as a novel pro-apoptotic protein. To define the roles of PDCD6 and cisplatin in tumorigenesis, we either over-expressed PDCD6 or treated it with cisplatin in SKOV-3 ovarian cancer cells. Both PDCD6 and cisplatin respectively inhibited cancer cell proliferation in a dose-dependent manner. The combined treatment of PDCD6 and cisplatin was more effective at suppressing cell growth than with either drug treatment alone, but had no effect with the treatment of caspase-3 and caspase-9 inhibitors. Cleavages of caspase-3, -8, -9, and poly (ADP-ribose) polymerase (PARP) in PDCD6-overexpressing cells were significantly increased after cisplatin treatment. Cell cycle analysis highly correlated with down-regulation of cyclin D1 and CDK4, and the induction of p16 and p27 as a cyclin-dependent kinase inhibitor. Additionally, PDCD6 also suppressed the phosphorylation of signaling regulators downstream of PI3K, including PDK1 and Akt. PDCD6 promotes TNFα-dependent apoptosis through the activation of NF-κB signaling pathways, increasing Bax, p53, and p21 expression, while also down-regulating Bcl-2 and Bcl-xL expression. The p21 and p53 promoter luciferase activities were enhanced by PDCD6, while there was no affect in p53(-/-) and p21(-/-). At the same time, p53 activity was confirmed by UV irradiation and siPDCD6. Taken together, these results provide evidence that PDCD6 can mediate the pro-apoptotic activity of cisplatin or TNFα through the down-regulation of NF-κB expression.
Collapse
Affiliation(s)
- Sung Ho Park
- Department of Obstetrics and Gynecology, Hallym University, Seoul, Republic of Korea
| | | | | | | | | | | | | | | |
Collapse
|
12
|
Matsukawa T, Hasegawa H, Shinohara Y, Kobayashi J, Shinohara A, Chiba M, Ichida K, Yokoyama K. Simultaneous determination of selenomethionine enantiomers in biological fluids by stable isotope dilution gas chromatography–mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 2011; 879:3253-8. [DOI: 10.1016/j.jchromb.2011.03.057] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2010] [Revised: 03/17/2011] [Accepted: 03/30/2011] [Indexed: 10/18/2022]
|
13
|
|
14
|
Risinger AL, Natarajan M, Thomas CR, Mooberry SL. The taccalonolides, novel microtubule stabilizers, and γ-radiation have additive effects on cellular viability. Cancer Lett 2011; 307:104-111. [PMID: 21507571 DOI: 10.1016/j.canlet.2011.03.022] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2010] [Revised: 03/24/2011] [Accepted: 03/25/2011] [Indexed: 11/26/2022]
Abstract
The taccalonolides are novel antimitotic microtubule stabilizers that have a unique mechanism of action independent of a direct interaction with tubulin. Cytotoxicity and clonogenic assays show that taccalonolide A and radiation act in an additive manner to cause cell death. The taxanes and epothilones have utility when combined with radiotherapy and these findings further suggest the additive effects of microtubule targeting agents with radiation on cellular proliferation are independent of direct tubulin binding and are instead a result of the downstream effects of these agents. These studies suggest that diverse antimitotic agents, including the taccalonolides, may have utility in chemoradiotherapy.
Collapse
Affiliation(s)
- April L Risinger
- Department of Pharmacology, University of Texas Health Science Center at San Antonio, San Antonio, TX, United States.
| | - Mohan Natarajan
- Department of Otolaryngology, University of Texas Health Science Center at San Antonio, San Antonio, TX, United States
| | - Charles R Thomas
- Department of Radiation Oncology, University of Texas Health Science Center at San Antonio, San Antonio, TX, United States
| | - Susan L Mooberry
- Department of Pharmacology, University of Texas Health Science Center at San Antonio, San Antonio, TX, United States.
| |
Collapse
|
15
|
Miller ME, Elashoff DA, Abemayor E, St. John M. Tonsillar Squamous Cell Carcinoma. Otolaryngol Head Neck Surg 2011; 145:236-41. [DOI: 10.1177/0194599811401799] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Objective. To analyze outcomes in patients with squamous cell carcinoma (SCCA) of the tonsil from the years 1998 to 2006. To assess factors that may affect disease-specific survival, such as patient characteristics and/or treatment modality. Study Design and Setting. National Cancer Institute’s Surveillance Epidemiology and End Results (SEER) program. Subjects and Methods. The SEER database was used to perform a population-based cohort analysis for patients diagnosed with SCCA of the tonsil from 1998 to 2006. Disease-specific survival was correlated with sex, age, ethnicity, year of diagnosis, and treatment modality in a univariate Cox proportional hazards analysis and a multiple Cox-regression model with and without interaction effect. Results. Applied inclusion criteria resulted in 8378 patients. Of this patient cohort, 80% were male and 85% were white. The mean patient age at diagnosis was 58.1 years. On univariate and multivariate analyses, ethnicities other than white carried a significantly higher rate of disease-specific death (hazard ratio = 1.71, P < .001). Each additional year of age at the time of diagnosis carried approximately a 4% increase in likelihood of disease-specific death. With each passing year of time at diagnosis, patients carried a decreased risk of disease-specific death ( P < .001); this value was significant in all 3 statistical models. Patients who underwent external-beam radiation had a higher likelihood of disease-specific survival with each passing year at time of diagnosis. Conclusion. Population analysis based on the SEER database reveals increased disease-specific survival from tonsillar SCCA in more recent years. This may be because of earlier diagnosis, an increase in less aggressive subtypes of SCCA, and more effective treatment modalities.
Collapse
|
16
|
Role of glutathione in the regulation of Cisplatin resistance in cancer chemotherapy. Met Based Drugs 2010; 2010. [PMID: 20885916 PMCID: PMC2946579 DOI: 10.1155/2010/430939] [Citation(s) in RCA: 189] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2010] [Accepted: 08/25/2010] [Indexed: 12/18/2022] Open
Abstract
Three mechanisms have been proposed for the role of glutathione (GSH) in regulating cisplatin (CDDP) sensitivities that affects its ultimate cell-killing ability: (i) GSH may serve as a cofactor in facilitating multidrug resistance protein 2- (MRP2-) mediated CDDP efflux in mammalian cells, since MRP2-transfected cells were shown to confer CDDP resistance; (ii) GSH may serve as a redox-regulating cytoprotector based on the observations that many CDDP-resistant cells overexpress GSH and γ-glutamylcysteine synthesis (γ-GCS), the rate-limiting enzyme for GSH biosynthesis; (iii) GSH may function as a copper (Cu) chelator. Elevated GSH expression depletes the cellular bioavailable Cu pool, resulting in upregulation of the high-affinity Cu transporter (hCtr1) which is also a CDDP transporter. This has been demonstrated that overexpression of GSH by transfection with γ-GCS conferred sensitization to CDDP toxicity. This review describes how these three models were developed and critically reviews their importance to overall CDDP cytotoxicity in cancer cell treatments.
Collapse
|
17
|
Ishida S, McCormick F, Smith-McCune K, Hanahan D. Enhancing tumor-specific uptake of the anticancer drug cisplatin with a copper chelator. Cancer Cell 2010; 17:574-83. [PMID: 20541702 PMCID: PMC2902369 DOI: 10.1016/j.ccr.2010.04.011] [Citation(s) in RCA: 214] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2009] [Revised: 08/17/2009] [Accepted: 04/19/2010] [Indexed: 12/12/2022]
Abstract
Uptake of the anticancer drug cisplatin is mediated by the copper transporter CTR1 in cultured cells. Here we show in human ovarian tumors that low levels of Ctr1 mRNA are associated with poor clinical response to platinum-based therapy. Using a mouse model of human cervical cancer, we demonstrate that combined treatment with a copper chelator and cisplatin increases cisplatin-DNA adduct levels in cancerous but not in normal tissues, impairs angiogenesis, and improves therapeutic efficacy. The copper chelator also enhances the killing of cultured human cervical and ovarian cancer cells with cisplatin. Our results identify the copper transporter as a therapeutic target, which can be manipulated with copper chelating drugs to selectively enhance the benefits of platinum-containing chemotherapeutic agents.
Collapse
Affiliation(s)
- Seiko Ishida
- Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, San Francisco, CA 94143, USA
| | | | | | | |
Collapse
|
18
|
Current world literature. Curr Opin Otolaryngol Head Neck Surg 2010; 18:134-45. [PMID: 20234215 DOI: 10.1097/moo.0b013e3283383ef9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
19
|
Dean NR, Newman JR, Helman EE, Zhang W, Safavy S, Weeks DM, Cunningham M, Snyder LA, Tang Y, Yan L, McNally LR, Buchsbaum DJ, Rosenthal EL. Anti-EMMPRIN monoclonal antibody as a novel agent for therapy of head and neck cancer. Clin Cancer Res 2009; 15:4058-65. [PMID: 19509148 DOI: 10.1158/1078-0432.ccr-09-0212] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
PURPOSE Extracellular matrix metalloprotease inducer (EMMPRIN) is a tumor surface protein that promotes growth and is overexpressed in head and neck cancer. These features make it a potential therapeutic target for monoclonal antibody (mAb)-based therapy. Because molecular therapy is considered more effective when delivered with conventional cytotoxic agents, anti-EMMPRIN therapy was assessed alone and in combination with external beam radiation. EXPERIMENTAL DESIGN Using a murine flank model, loss of EMMPRIN function was achieved by transfection with a small interfering RNA against EMMPRIN or treatment with a chimeric anti-EMMPRIN blocking mAb. Cytokine expression was assessed for xenografts, tumor cells, fibroblasts, and endothelial cells. RESULTS Animals treated with anti-EMMPRIN mAb had delayed tumor growth compared with untreated controls, whereas treatment with combination radiation and anti-EMMPRIN mAb showed the greatest reduction in tumor growth (P = 0.001). Radiation-treated EMMPRIN knockdown xenografts showed a reduction in tumor growth compared with untreated knockdown controls (P = 0.01), whereas radiation-treated EMMPRIN-expressing xenografts did not show a delay in tumor growth. Immunohistochemical evaluation for Ki67 and terminal deoxynucleotidyl transferase-mediated deoxyuridine triphosphate-biotin nick end labeling (TUNEL) resulted in a reduction in proliferation (P = 0.007) and increased apoptosis in anti-EMMPRIN mAb-treated xenografts compared with untreated controls (P = 0.087). In addition, we provide evidence that EMMPRIN suppression results in decreased interleukin 1beta (IL-1beta), IL-6, and IL-8 cytokine production, in vitro and in vivo. CONCLUSIONS These data suggest that anti-EMMPRIN antibody inhibits tumor cell proliferation in vivo and may represent a novel targeted treatment option in head and neck squamous cell carcinoma.
Collapse
Affiliation(s)
- Nichole R Dean
- Department of Surgery, Division of Otolaryngology-Head and Neck Surgery, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|